Printing mechanism for accounting machines



Oct. 4, 1932. i=1 M: CARROLL 1,380,416

PRINTING MECHANISM FOR ACCOUNTIilG MACHINES Filed Feb. 17, 1928 12Sheets-Sheet 1 Oct. 4, 1932- F. M. CARROLL 1,880,416

PRINTING MECHANISM FOR ACCOUNTING MACHINES Filed Feb. 17, 1928 12'Sheets-Sheet 2 Oct. 4, 1932. I F. M. CARROLL 1,880,416

- PRINTING ECHANISM FOR ACCOUNTING lACH INES F lled Feb. 17, 1928 12'Sheets-Sheet 3 wuehto;

.J d 7. Ca r'ro 351 h elf tome I Oct. 4, 1932. F. M. CARROLL 1,380,416

PRINTING MECHANISM FOR ACCOUNTING MACHINES 12' She ets-Sheet 4 Filed Feb. 17, 1928 Eywwtoz 5 Fred M; Car/0 Oct. 4, 1932. F. M. CARROLL 1,880,416

PRINTING MECHANISM FOR ACCOUNTING MACHINES Mall/117ml I I'" 1. HI

IHHIIHHHIHIHI IM II HH HIH I avweuto'c HII.

Oct. 4, 1932. F. M. CARROLL PRINTING MECHANISM FOR ACCOUNTING MACHINES v Fi1ed Feb. 17, 1928 12'Sheets-Sheet 7 j anomto'c 93x i Eli [Somal 7 Fred MCmf/O Oct. 4, 1932. F. M. CARROLL 1,830,416

' rnmrme MECHANISM FOR- ACCOUNTING MACHINES Filed Feb. 17, 1928 12Sheets-Sheet 8 FIG-9.

avwwntoz Fr'e M. Car/0 0a. 4, 1932. F. M. CARROLL 1,880,416

PRINTING MECHANISM FOR ACCOUNTING MACHINES Filed Feb. 17, 1928 v 12-Sheets-Sheet 9 FIGJI.

' Oct. 4, 1932.

F. M. CARROLL v PRINTING IECHANISM FOR ACCOUNTING MACHINES Filed Feb. 17, 1928 12- sne'ets-sneet 1o FIG.20-

avweutoz Fred M. C rfr-o// Oct. 4, 1932.

F. M. CARROLL PRINTING MECHANISM FOR ACCOUNTING MACHINES 12' Sheets-Sheet l 1 Filed Feb 17, 1928 swan m: muss mm IOI \ swmxuu. HENRY or mmm avwwntoz Fr'ed Ca rro 35 h is Oct. 4, 1932.

F. M. CARROLL 1,880,416 PRINTING HECHANISM FOR ACCOUNTING gm cgmms Filed Feb. 17, 1928 1z'Sheets-Sheet' l2 VIII/[1m FIGJB.

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Lianne TAbuLATMe u 0 MN 8 a C mm gm F 9 6 Patented Oct. 4, 1932 UNITED STATES ATENT- I OFFICE FRED M. CARROLL, OF YONKEBS, NEW YORK, ASSIGNOB TO THE TABULATIN G MACHINE COMPANY, OF ENDICOTT, NEW YORK, A CORPORATION OF NEW JERSEY PRINTING MECHANISE FOB ACCOUNTING MACHINES Application filed February 1?, 1928. Serial No. 254,938.

This invention relates, to printing mechanisms in general and more particularly to. the paper feeding mechanisms therefor whereby the paper may be spaced in predetermined amounts.

In accounting practice it is usually desirable. to listitems relating to some particular classification upon a sheet together with the total of such items. Where the data is printed upon separate manually insirable that the. strip be cut into sheets of predetermined length for convenience in handling and filing and that more than one copy of the data printed be provided.

It is, therefore the main object of the present invention to provide a mechanism whereby listing of items and totals may be effected upon a work sheet consisting of a number of blank forms connected in a continuous web or long sheet.

. It is a further objectic'f the present invention to provide a 'mechanism whereby the strips containing the data listedare severed into sections or sheets of required size and then stacked.

It is still a further object of the present invention to provide means whereby the du plicating medium for ,eifecting duplicates of the copies listed may be drawn off for sub-- sequent use while the printed strips may be severed into sheets and stacked.

In connection with listing operations, it is a further object to automatically space the paper after the last listing operation so that subsequent listings are made at the proper point on the following blank form.

In connection with pa er feeding operations, it is a further ob ect of the present invention to provide a mechanism whereby the'additional load placed upon the machine due to the initiation of the paper feeding operations will be obviated.

In connection with the duplicating mechanism it is a further object to provide an au ziliary mechanism whereby the duplicating medium may be re-woundevenly upon a storage roller if this condition does not obtain during operations of the machine.

While it is a further object of the present invention to devise a mechanism for accomplishing the functions of continuous listing,- severing and stacking which is automatic in its character and performance and which requires inattention on part of the operator, it is a still further object-to provide means 'Whereby operations will be suspended when a predetermined number have been effected. The particular type of entering mechanism v whereby items may be listed and printed does not enter in the present invention but for the purpose of illustration and to more clearly comprehend the present improvements the type of entering mechanism controlled by punched cards is shown and described.

In general, record controlled tabulators are a designed to add, list and print totals of items automatically entered in the machine from control records on which items are represented by index point perforations located in differential positions in the several card colum'ns. I

' The cards are fed throu h the machine au-. tomatically and analyzed y suitable mechanism which in turn controls the accumulating and printing devices of the machine so that the data represented by-the perforations in the, card ma be accumulated and printed. The controlling records are usually divided into groups representin different classifica-,

tions, the group classi cation being repre-f sented in each card by similarly located perforations audit is desirable to continue the automatic feeding of the records to the analyzing mechanism as long as the group classification does not change but to interrupt the card feed for the purpose of taking totals when the groups change.

With a general understanding, of the machine to which the present improvements are applied the present invention will be more clearly understood, I but: as the. Specification progresses, it will be readily apparent that other forms and t P nisms me be readi illustrate a The invention willbe clear from the following'detailed description which should be read in connection with the accompanying drawings in which;

Fig. 1 is a front view in; elevation of a conventlonal form of tabula tor with the improved attachment associated therewith.

\ Fi '2 is a view inside elevationof the tabu ator shown in Fig. 1 taken on the line 2 2ofFig.1;

- Fig. 3 is a section on line 8-3 of Fig. 1; a Fig. 4 is a section on line 4-4 of Fig.1;

Fig. 5 is a plan view of the main operating mechanism taken on the line 5-5 of Fig. 4;

Fig. 6 is an enlarged lon itudinal sectional view of some of-the'parts s own in Fig. 5

Fig-7 is a transverse sectional viewta en on the line 77 of Fi .3; 8 is an enlarge view in side elevation of t e mechanism provided for effecting double line spacing of the paper pes of entering mechay substituted for the one 1e or 1g. 9 IS a sectional view 1n side elevationof the mechanism for controlling the spacing of the paper strips between listing operations Fig. 10 is a sectional view taken on the line '10-.10 of Fig. 9; Fig. 11 is an enlarged sectional view of the paper severi devices, and the mechanism or' stacking t e printed sheets;

.du heating striprewinding mechanism;

' ig..13 is a partial end view of some of the devices illustrated in- Fig. 2 and is taken'on the line 13-43 of Fig. 1;

' Fi 14 is a view in side elevation of the frictional retarding device associated with the duplicatingstrip suppl roller and is taken on the line 14=14 of ig. 3; Fig. 15 is a front view in elevation of the mechanism provided for separating the duplicating medium from the printed strips-5 Fi 16 is a sectional view taken on the hue x16- oofF-ig. 15;

Fig. 17 is a, view. in side elevation of the cam shafts for controlling the associated contacts;

F 18 is a top plan view of thedevices illustrated in Fig. 1 Fig. 19 is a diagrammatic representation of re ay control circuits;

the motor and Fig. 20 is a view in side elevation of an auxiliary device used for the purpose ofrewindm the carbon strip on a roller. F

imilar reference numerals in all of the 1 above wondmg parts thereof. a

- orthe purpose of 'llustration the present improvements are shown in connection with I 'the Holli'i'th tabulatingmachine but it will be understood that with slight modifications they may be'embodied in other forms of acrestrictive.

Fig. 12 is a view in side elevation of the the type from a storage around rollers res are employed todesignate co'rtrahsmits power by a counting is to be considered as illustrative rather than The Hollerith 'tabulator is well known in the art and requires but little further description than will be given incidentally herein. In Fig. 1 the card controlling portion 1 the driving motor 2, the counter shaft 3 and the counters 4 'are shown in their normal relationshi As is well known, as the rforated car s are passed through the mac us, one

or more of the counters are operated to show the fi res or the totals of the figures represente by the perforations in sai cards.

The improved printing attachment for such a tabulator' is designated generally by machines and the present showing numeral 5, a part of the interior mechanism of which will now-be described by reference to Fi 3. The printing devices whereby nu-' to the perforations in umns or the amount mera correspondin particular card co standing on any particular counter wheel are printed comprises a plurality of groups of type bars 6 any one of which may be impelled by hammers 7 against a platen 8 to perform the' printing functions. Ina'smi'ichj as the printing devices and the controlling devices therefor are not involved in the: resent application they arenot shown in etail herem. For further details of the above reference may be had to the Lake Patent, #1,379,-.

268 dated May 24, 1921.

The aper strip onwhich merals 'y means of an bon 9 and carriers 6 is drawn m a storage roller 10 thence passes around fixed rollers 11 1iprinted nuand 12, around a roller 13 carried by a pivoted roller 15 also carried 'by an arm 16, thence over and under a series of rollers arm 14, to a 17 and then around the platen roller 8. By means 0 the inking ribbon 9 impressions are effected directly upon the paper strip drawn from storage roller 10. Y

The paper strip upon which the impressions are made by a duplicating medium suc as the carbon strip 18 herein shown, is drawn roller 19 and likewise p 12, 13 and- 15 to the series of fixed rollers 20 and thence downward around the platen roller 8. Carbon strip 18 is interposed between the paper strips 23 and 24 drawn from the rollers 10 and 19 respectiveroll 21 and 24 glee Fig.

to cooperate wi a pair ly and is drawnfrom a supply while the strips 23 an 15) exten upward] of feeding rollers arated out in a manner to be descri lil the carbon stri is sepherein- I Power for driving the various mechanism comprising the :present improvements is, in. I

the present case, obtained byfan' auxiliary motor 79 (Fig. 8) the drive shaft of whic a sw rd wheel 25 (Fig. A pinion 26 rotatable with wheel 25 drives a gear 27 through idler ear 28 and pinion 29. Sleeved to gear27 y a sleeve 30 is a ratchet wheel 31 (Fig. 8).

5 Thus through the train of mechanism just described ratchet wheel 31 is constantly rotated for the purpose of line spacing the paper strips 23 and 24 to suitable space items and totals.

Line spacing mechanism The mechanism for effecting single line spacing is under the combined control of ratchet wheel 31 and a magnet 32 (Fig. 8).

5 Pivoted by a stud 33 is a triple armed'member 34 one arm of which carries a pawl 35 adapted to normally latch a pawl 36 and hold a tooth 37 thereof out of engagement with the interdental spaces of the constantly rotating ratchet wheel 31. When the latching relationship is established an extension 38 of the latching pawl 35 is some distance away from an upward extension 39 of an armature 4O attracted by the magnet 32. When the magnet 32 is energized extension 39 will strike extension 38 rockingpawl to permit a spring 41 to be effective to rock pawl 36 to engage the tooth 37 with the ratchet wheel 31. This will result in rocking triple armed member 34 30 and through a link 42 will rock a bell crank lever 43 and through the medium of a pawl 44 coacting with a ratchet wheel 45 attached to a shaft 46 (Fig. 6) to which the rearward feeding roller 22 is secured. the pair of feed-.

35 ing rollers 22 will be rotated. This will result in feeding the paper strips 23 and 24 upwardly to suitably space the last printed item from the succeeding one. Restoring action of the parts which drive the rollers 22 is afforded by a spring 76 (Fig. 3) to be referred to hereinafter and which is effective to accomplish this after the tooth 37 is disengaged from the ratchet 31. The latter function is effected b the coaction of a cam extension 48 ('Fi 8 y with a stationary pin 49 attached to a hxed plate 50, pin 49 gradually camming pawl 36 downward until it is subsequently latched by awl 35. The ihitial position of the parts ust described is controlled by a lug 51 of an extension ofstriple armed member 34 coactin with a finger 52 of an armature 53 the re ationship just described being normally maintained by the. spring 76 which acts to force lug 51 against the top of fin er 52. The position of pin 55 is determined y the position of a controlling slide 56 since the open ended slot thereof receives pin 55. As shown, slide 56 is adjusted for single spacing but when moved rearwardly to latched position it will rock armature 53 permitting spring 76 'to be effective to rock member 34 against a stop pin 57 (see Fig. 8). When in this position tooth 37 will engage the ratchet wheel 31 at a point farther removed from the center of 9 ratchet wheel 31 than otherwise and thus ima double spacing of the paper. Ordinarily the parts are set for single spacing so that a double space will occur after a printed total in which case a magnet 58 will also come into play, as will be explained hereinafter.

Current fordrivlng the auxiliary motor 7 9 (Fig. 19) is obtained-from line wires 60. To control the energizationof magnets 32 and 58 at the proper time. cam contacts are provided. Reference numeral 59 designates a pair of contacts which are closed under the action of a setting lever 690 when the latter is adjusted to the listing position so as to complete the circuit through magnet 32 when cam contacts 61 are closed. The latter are controlled by a cam 62 rotatable with a shaft 63 which is driven during listing operations.

Cain contacts 61 make shortly after the printing operation so that the printed paper strips ma be fed immediately thereafter. I

n-total taking operations, it is desirable to double space the paper so as to readily identify the total printed. The double spacing occurs after atotal print and is controlled by the combined action of magnets 32 and 58. Referring to Figs. 17, 18 and 19, reference numeral 68 designates a shaft operable during total printing operations and in the present machine during this operation shaft 63 is idle.- Shaft 68 carries cams 69 and 7 O which are adapted to close contacts 71 and 72'frespectively. Cam 69 operates upon a lever arm 73 so as to close-contacts 71 while cam 70 operates upon a lever arm 74 to close contacts 72. As shaft 68 rotates in the direction' of the arrow in Fig. 17 CZIIXl'GQ rocks. lever 73 to close contacts 71 which closes the circuit through magnet 58. This will immediately adjust the parts for a double spacing (see Fig. 4) whereupon cam 70 will subsequently rock lever arm 74 to close contacts 72 energizing the magnet 32 to complete the paper feeding operation.

It is sometimes desirable to effect blank spacing of thepaper and in the present machine this is accomplished by a manually operable lever'64 (Fig. 8). Lever 64 is of bell crank formation and is articulated to a link 65 which is connected to an arm 66. Arm 66 carries a pin 67 coacting with the armature 40. Depression of lever 64Will rock armature 40 to effect single or double paper spacing operations in exactly the same manner as premised hereinbefore.

In the present machine the paper feeding operations occur rapidly and in the event that the paper was drawn directly from the supply rollers a considerable amount'of power would be required to start rotation of the supply rollers and if feeding rollers 22 slipped, inaccurate spacing of items would result. It is also desirable that the paper be relatively taut so that spacings may be regular. In the present instance in order to prevent tearing i of the paper during feeding operations and to reduce the load on the motor caused by the paper feeding operation the paper is slackened and the slack then taken up. To this end plate 34 has connected thereto a l1n k 75 (Figs. 3 and 4) the lower end of WhlCll is connected to an extension of the arm 16. As plate 34 is rocked during a feeding o eration link 75 will rock arm. 16 clockwise Fig. 3) 6 producing a slack in the aper strips between roller and rollers 1 gradually taken up and link and tri le armed member 34 are restored to normal y the sprin 76 connected to an extension of 15 arm 16. :ltestoration of arm 16 by spring 76 will also draw paper from the rollers 10 and 19 until the paper strips a e again taut.

The rearward feeding ro ler 22 (Fig. 6) is carried by and attached to a .shaft, 46 jourgb nalled in the side frames 81 and 82 of the attachment and for the purposes of manual rotation the shaft,46 carries a knurled knob 83. The cooperating forward roller is carried by a plurality of arms 84 and 85 fixed n to a rod 86 'ournalledin the frame members 81 and 82 (Figs. 1, 5.and 6). 'A spring 87 (Fig. 9) connected to arm84 urges the rollers 22 into frictional relationship, while the rearward roller 22 (Fig. 5) preferably drives the 30 cooperating roller by intermeshing gears 88 attached to the respectivefeeding rollers. For the purpose of manually separating the feeding rollers 22 to insert the paper strips a lever 89 (Fig. 9) is provided and rocks an 86 eccentrically mounted shaft 90 which coop erates with an extension 91 of arms. 84 and 85. Rocking of the shaft 90 by lever 89 will draw the forward roller 22 out of cooperative rela tion ship with the rearward roller 22 slightly but not sufficient to disengage the" gears 88 (Fig. I M eans for rewihdz'ng duplicating strip After the printed strips 23 and 24 pass between the feeding rollers 22 they are referablv severed into strips and stacked ut the carbon duplicating strip is separated and rolled on a storage roller for subsequent use. Referring to Figs. 15 and 16 the carbon strip 18 is turned over the diagonal edge 95 of'a fixed plate 96' after it leaves platen roller 8 thus changmg the feed of the carbon strip transversely. The carbon strip 18 is again turned over the diagonal ed e 97 to continue 65 its direction of feed vertical y parallel to the direction of feed of strips 23 and 24 whereupon it is wound on a storage roller 98 (Fig. 13). The diagonal edge 97 may be the edge of the plate 96 but in the present instance it comprises the edge of a plate 94 pivoted to plate 96 so that the angular adjustment thereof to provide for a roper verticalifeed of the carbon strip may e regulated byadjusting screws 99.

The carbon strip passes over a roller 100 and 20. This is shaft of roller 100 and removably atta removed by unscrewin (Figs. 12 and 13) j ournalled between the side rame 81 and extension of a bracket 101 (Fig. 15) attached to plate 96. The store e roller 98 is loosely mounted on a shaft 102 ig. 12) supported at one end by the frame piece 81.

Storage roller 98 is frictionally driven'by the friction drive 103 one element ofwhich i driven by a gear 104 (Fig. 4) which meshes with the constantly rotating gear 27 through v idler gear 105.

Rotation of gear elements 103 will tend to turn storage roller 98 and thus wind the strip about the roller 98 but this is effectively prevented by regu- "latin the friction drive. The preferred regu a-tin means comprises an adjusting nut 106 w ich is screwed upon the shaft 102 and bears against the end of roller 98. The nut 106"fits 1n an open. ended slot 1071 (Fig; 13) of a plate 107 pivoted on the'supporghilg to bracket 101 by a wing nut 108. By screwing nut 106 the roller 98 ma be adjusted along shaft 102 to regulate t e amount of slipping between clutch elements 103.- A screw 109 is provided to lock the nut 106 in itsnposition o adjustment. When the platen ro er 8 is turned synchronously with the feeding rollers 22 the carbon strip 18 will be drawn upwardly by the paper strips 23 and 24. The carbon strip will then be taken up by the storage roller98 in a manner so that the same will be wound tightly thereon. A frictional --i-etarding device comprising a spring urged plate 112 (Fig. 14) bears against the ripher of the supply roller 21 to prevent t is also provided to keep the carbon strip taut. The carbon storage roll 98 may be readily the wing nut 108 (Fig. 13) to permit p ate 107 to be moved about its pivot thus releasing the roller 98. For roperoperation it is necessar that the car on strip be wound ti htl an ev 1 about the supply roll. I this condition oes not obtain the strip may be 'rewound the machine by transferring the improperly wound roll to a shaft'921 which carries a bail shaped holder 92 provided with a hendie 93 w ich permits lateral adjustment of the roll along the fixed shaft 921.. The end of the strip is attached by some suitable means to a roller carried b shaft 102. By suitably adjusting the ho der 92 laterally. the carbon strip may be re-wound evenly and tightly upon roller'98. This expedient is also of use in transferring a new carbon strip .froma cardboard stock roller to one of the As will be observed in Fig. 15 the present V machine lists items and totals upon strips of paper which are pre-printed to accommodate oertain'identifying matter. It is desir- 104 and the friction clutch ico e latter rom rotating freely and Ill - within the purview of the present invention able of course that when the desired number of printings have been effected that the strips be automatically spaced so as to print subsequent items and totals upon the following forms. The present machine is intended to print lines of single-spaced data upon each sheet but this number is not the essence of the present invention and it is considered to alter this number to meet any particular requirement. The preferred means whereby the paper is automatically spaced to print on the. next sheet when the desired number of listings have been effected is as follows. Pinion (Figs. 5 and 6) is secured to a stub shaft which carries a similar pinion 111 and which drives a ratchet wheel 112 through a gear 113 and connecting sleeve 114. The ratchet wheel 112 (Fig. 9) is one element of a clutch connection which is adapted toy drive the feeding rollers 22 at a certain time. Loosely mounted on the shaft '46 is a disk 115 carrying a pawl 116 which is in the plane of the ratchet wheel 112 and adapted to engage the teeth of the ratchet wheel. Also, pivoted to the disk 115 is a supplemental pawl 117 Figs. 5 and 9) which is adapted to engage a s oulder 118 of a disk 119 securely fixed to the feeding roller shaft 46 (see Fig. 6). During machine operation ratchet wheel 112 rotates constantly and pawl 116 is normally held out of engagement therewith by a latch member 120 (Fig. 9) which is provided with a shoulder 121 normally engaging the tail of pawl 116. However, when latching member 120 is rocked as shown in Fig. 9 spring 122 is effective to rock pawl 116 into engagement with the teeth of the ratchet wheel to thereupon drive disk 115. As disk 115 rotates the pawl 117 will engage the shoulder 118 driving disk 119 to rotate the feeding rollers supplementally. Prior -to the time that pawl 116 returns to its home position latching member 120 will be restored so that the tail of pawl 116 will subsequently engage the shoulder 121 permitting a free and independent rotation of ratchet wheel 112. As the pawl 116 strikes the shoulder 121 the possibility of rebound of disk 115 will be prevented by a pawl 123 engaging a shoulder 124 of disk 115.

The preferred means whereby the clutch is rendered effective at the proper time to automatically feed the paper comprises a.

ratchet wheel 125 (Figs. 4 and 8) which is 4 given a step of movement for each single line epace. Pivotedto a dowli'ward extension of ever 43 is a gravity paw 126 en a'gm' g the teeth. of the ratchet wheel 125. a or each smgle or double movement of lever '43 a corresponding amount of movementis given to ratchet wheel 125; As ratchet wheel 125 completes a full revolution corresponding. to 85 line spaces, an actuating plate 127. will feeding 1 During the time the feeding rollers 22 are engage and rock an extension of a pivoted lever 128 (Fig. 10) which in turn rocks an extension 129 of a pivoted bail member 130 of which latching member 120 is an integral bent part. When lever 128 and bail member 130 are rocked they are restored to normal bya spring 131 so that the tail of pawl 116 -may subsequently engage the shoulder 121.

Manual control of the clutch just referred to for the purposes of feeding the paper strips as desired may be effected by a control lever 134 (Fig. 9) the upward extension 132 of which is adapted to engage a bent portion of the latching member 120 to rock the bail 130 in exactly the same manner that lever 128 does. The lever 134 is automatically returned to normal and ineffective position by a coil spring 133.

Attention is directed to the fact that after a-step ofmovement is imparted to the feeding rollers 22 (Fig. 4;) they are aligned and 'locked against overthrow by an ahgning 137 engaging a lever 138 to w ich one end of sprin 136 connected. It will be apparent that towards the end of a pa r run cam 137 will rock lever 138increas1ng the tension of spring 136 so that pawl ma be urged against the ratchet wheel 45 wit greater force to prevent overthrow of the rollers'22.

feeding the paper strips suplplementally a certain amount of slack in t e paper provided between roller 12 (Fig. 3) and roller 15 is taken up. Thisis performed by means of a spiral cam 1 10 rotatable with ratchet wheel 125 and which rocks a bell crank lever 141 one arm of which is connected to the extension of arm 14 by a link-142. While the data is being listed on the sheet cam 140 rocks-bell crank lever 141 so as to force roller from the rolls 10 and 19. When lever 1411. drops off the high point'of cam 140 a spring 143 connected'to the arm 14 quickly raises roller 13 producing a certain amount of slack in the paper between rollers '15 and 12 and paper strips are being fed sup plementally.

Papertethering and stacking mechanism be wound on'a storage 'roller but are preferably cut intosheets of a desired size and 13 downwardly in increments to the, position shown, drawing a certain amount of paper which is then taken up during the time the As the sheets are printed and fed they may I i carried by rod 164.

stacked. The preferred means whereby the above may be accomplished comprises the following mechanism.

*As the printed strips are fed vertically by the feedin rollers 22 they pass between a stationary lrnife 144 (Figs. 3, 7 and 11) and a movable guillotine knife 145. The latter is actuated at the proper time to sever these paper strips as will be described hereinafter. As the strips are fed they assume substantially the over-hanging position indicated in Fig. 3 and drop over a grid comprising a series of wires 146 all of which except the outermost ones are anchored at their ends b plates 147 and all are bent concentric wit res ct to a rock shaft 148. Secured to the rec shaft 148 are arms 149 each at its upper end a roller 150. These rollers pass over the ejected paper strips and roll them over the grid 146 so the free end of the strips abut the vertical sections 151 of the grid. When this position is assumed the strips are severed so that as they tumble over they will be stacked on a platform 152 also of grid formation.

Rocking of the shaft 148 to perform the necessar functions is preferably accomplished l iy clutching the shaft to one of the operating parts of the machine. Rotatable .with the constantly-rotating gear 27 is a ratchet wheel 153 (Figs. 4 and 5). Secured to shaft 148 is a disk 154 pivoted to which is a pawl 155 adapted to engage the teeth of the ratchet wheel but normally disengaged by a latching pawl 156 also pivoted'to disk 154. At a certain point in the cycle of rotation of ratchet wheel 153 the actuating late 127 will strike a finger 157 sleeved to a ever 158 (Fig. 7) rocking the latter so that the extreme end thereofwill strike atail159 (Fig. Qhof latching pawl 156 and rock the latter. e released pawl 155 will'now be urged by its connecting spring 160 to engage the ratchet wheel 153 and thus drive shaft 148 counterclockwise as viewed in Fig. 4. Prior to a complete revolution of disk 154 pawl 155 will strike a stationary pin 161 (Fig. 11) disengaging the .pawl from the ratchet wheel 153 and while this relationship exists latching pawl 156 snaps under a portion of pawl 155. Automatic return of shaft 148 when released is effected by a coil spring 162 (Fi 7) which is wound when shaft 148 is turned. This will bring the parts again to the position shown in Fig. 4.

Any shocks due to the nick return of arms 149 is taken up and eased by flat sprin 139 Figs. 7 and 11) the free ends of whic pass ictionally under the cross-bar to which the late 147 is attached as will be best seen in ifi 3 and. 7 v

ference character 163 (Figs. 7 and 11) desi ate a series of single coil s ring wires Normally ig. 3) the free ends of these wires are above the stacked carrying rocks over 9. lug when arms 149 are in their extreme downward rocked position. It will be apparent that the natural curve of the paper str ps may bring the ends in interference with rollers 150 when the latter are returned and the spring wires 163 firmly hold the strips down during the return of rollers 150 but are released as the rollers return to normal starting position. As the arms 149 and shaft 148 return to their normal starting position a cam 170 (Fig. 7) will rock the upper end of lever 169 sufficiently to unlatch the lever 166 whereupon s ring 165 will raise sprin wires 163 upward y.

Guillotine knife 145 is carried by a pair of arms 171 (Fi 7 and 11) pivoted on a rod 172. A link 1 3 connects one of the arms 171 to one arm of a pivoted bell crank 174 the other arm of which coacts with a spiral cam 175 attached to rock shaft 148. As shaft 148 is rocked bell crank 174 will draw link 173 downward gradually, thereby bringing knife 145 against the stationary knife 144 producing a shearing action on the paper strips.

It will be observed that the severing and stacking operations occur at a different time than the supplemental paper feeding operation. This is due to the act that when the paper sheets have been completely printed and are at a position where the line of demarcation (indicated by dotted-lines 176 in Fig. 15) coincides with the knives printing is still being performed on one of the forms following:

Means for predetermim'ng the number of sheets printed The various operations just described such as listing, paper feeding, severing and stacking are automatic in their character and are performed without any attention on part of the operator. It is desirable that after the operations in connection witha certain number of sheets have been performed that the operations be discontinued. The preferred form which may be rovided to accomplish the above is describe as follows:

Connected to the extension of lever 128, which it will be remembered is rocked for each sheet printed, is a link 177 (Fig. 4) which is connected to a lever 178. Pivoted to the lever 17 8 is a pawl 179 engaging the teeth of a ratchet wheel 180. As ratchet 163 is temporarily held by wheel 180 rotates a coil return spring 181 is wound and the various positions of the tacts 186 may be connected, in the line or motor circuits as desired. Automatic return of ratchet wheel 180 after the -machine stops may be performed by disengaging pawl 182 from ratchet wheel181 by a wire 187. Pawl 182 is preferably extended at 188 so as to rock pawl 179 and also disengage it from the ratchet wheel 180. lVhen wire 187 is actuated ratchet wheel 180 will thereupon be turned reverscly to normal by spring 181 and its return movement will be stopped by a pin 190 carried by the ratchet wheel 180 abutting a fixed pin 191. The control wire may be held in the ineffective position by frictional or other devices to permanently disable the automatic stopping mechanism ust described.

In the event that the machine does not stop when pin 184 strikes the contact spring 185 by reason of the fact, for example, that some metallic substance has short circ'uited contacts 186, further movement of pin 184 may cause a disarrangement and injury to the control mechanism. In this case as pin 184 strikes contact piece 185 and continues its movement a pin 192 carried by the latter coacting with a diagonal slot 193 in an extension 194 of pawl 182 will cam pawl 182 to disengage it and pawl 179 from .the ratchet wheel. Coil spring 181 will then act to quickly return ratchet wheel 180 to normal so that another set of operations will ensue.

The invention has now been described in connection with a single operative embodiment thereof but it will be understood. that many modifications will readily occur to those skilled in the art without departing from thespiritof the invention. It is the intention therefore, to be limited only as indicated by the scope of the following claims:

I claim:

1. In a machine of the class'described comprising in combination, item entering means for l sting data upon a work sheet comprising a series of connected blank forms, means for automatically spacing said work sheet when a predetermined number of listings have been effected upon a form, and means for predetermining the number of forms to be printed.

2, In a machine of the class described com-' prising in combination a printing mechanism including a duplicating medium for effecting duplicate impressions upon one' of a pair; of

paper strips,fa friction drive tending to feed .said duplicating medium, and regulating means for said friction drive.

3. In a machine of the class described com-,

prising in combination a printing mechanism including a pamof paper strips and a duplieating medium for. effecting duplicate 1m- 'pressions upon one of the paper strips, means for feeding the paper strips, a friction drive tending to feed said'duplicating medium, and means for regulating said friction drive whereby said duplicating medium is fed only simultaneously with said paperstrips.

4. In a machine of the class described comprising in combinatiom -a printing mecha nism for listing ltems upon a normally taut paper strip, a-storage roller, a pair of feeding rollers for feeding the paper strip, means.

for producing a slack in said paper strip between said feeding rollers and storage roller effective during the operation of said feeding rollers, and spring means effective to drive said storage roller and restore the paper strip to normally taut condition. 7

5. In a machine of the class describedcomprising in combination a printing mechanism,

for listing a predetermined number of items upon a paper strip, a paper storage roller v means for supplementally feeding said paper strip when the predetermined number of 1 items have been listed, and means for producing a slack in the paper strip between said I platen and storage roller effective prior to supplemental paper feeding operations.

6. In a machine of the class described comprisingin combination a printing mechanism for listing a predetermined number of items upon a paper strip, a storage roller for carrying said paper strip, means for supplementally feeding the paper strip when the predetermined number of items have been listed, and means for withdrawing the paper strip from said storage roller during listing operations, and devices for releasing said means, to produce a slack in said p'aper strip t ons.

" 7. In a machine of the class described comprising in combination, a prmtmg mechanism for listing items on a paper strip, apaper feeding roller, means for rotating said roller.

a predetermined amount, means comprrsmg' a number of listing operations.

8. In a machine of the class described come rising in combination a plurality of printlng devicesoperablesimultaneously to effect respectto the printingdevices, a control de- 125 listings, 9. platen having a fixed position with vice stopped at a certain positionw-hcn a predetermined number of listings has been ef-" fected upon-one of a'series of connected blank prior to supplemental paper feeding operahave been effected u on a form.

\ 9. In a machine 0 the class described comprising in combination, a plurality of 'rows of printing devices operable simultaneously to effect listings, a platen having a fixed position with respect to the printing devices, a

' control device for permitting a predetermined number of listings to be efiected upon one of a series of connected blank forms comprising a work sheet, and means effective during machine operation and under control of the control device when it stops at a certain position during its rotation for rotating said platen to space the work sheet when a predetermined number of listings have been effected upon a form. I

10. In. a machine of the class described comprising in combination, a plurality of rows of printing devices operable, simultaneously to efiect listings, a platen having a fixed position with respect to the printing devices, devices for permitting a predetermined number of listings upon a work sheet comprising a series of connected blank forms, means effective during machine operation and under control of the last mentioned devices for rotating said platento space the work sheet when a predetermined number of listings have been effected upon a form and means controlled by the predetermining devices for detaching a completely printed form from the work sheet.

11. In a machine of the class described comprising in combination, a plurality of printing devices operable simultaneously to effect listings, aplaten having a fixed position with respect to; the printing devices, devices for permitting a predetermined number of listing ings upon a work sheet comprising a series of connected blank forms, means under control of the last mentioned devices for rotatsaid platen to space the work sheet when a predetermined number of listings have been effected upon a form, means controlled by the predetermining devices whereby said printed sheet is severed into forms when a predetermined number of listings have been effected on each form, and means controlled by the predetermining devices for stacking the forms and operable as an incident to the severing operation.

12. In a machine of the class described in combination, a printing platen over which may be passed a plurality of work sheets interleaved by a carbon sheet, a carbon supply roll and work sheetsupply rolls below said platen, means for feeding said work and carbon sheets together while in interleaved relationship from said supply rolls about said platen, and a guide means having a pair of whereb parallel edges, one edge for feeding said carbon strip transversely out ofinterleaved relationship with said work sheet and the other edge for feeding the carbon strip parallel to the direction of feed of said work s 'eets.

13. In a machine of the class described, in.

combination, a platen over which a plurality of work sheets may be passed, a source of carbon supply arranged parallel to said platen whereby the work sheets and carbon sheet are fed to said platen together and in interleaved relationship, and a diamondshaped plate, one edge of which guides the carbon sheet transversely out of interleaved relationship with the work sheet, and another edge parallel to the first mentioned edge for feeding. the carbon strip parallelto the direction of feed of the work sheet.

14. In a machine of the class described in combination, a platen about which a plurality of work sheets and an interleaved car on strip may be drawn from lel to said platen, and guide means comprlsing a plate having parallel ledges capable of leading the carbon strip out of interleaved relation and thence in a direction parallel to but spaced apart from said, work sheets.

15. In a machine of the class described in combination, a platen about which a plurality of work sheets and an interleaved carbon strip may be passed, acarbon strip supply roller arranged parallel to said platen, and a guide plate having an edge at an angle to the platen for feeding 'said carbon strip out of interleaved relation with the work sheets and having another edge parallel to the first a source of supply parals named edge for feeding the carbon strip parallel to the work sheet.

16. In a machine of the class described in combination with a printing mechanism for printing data of distinct sheet comprising a series of connected blank forms, means for automatically spacing said work sheet when data of one type is (printed upon a form, means for operating sai means when data of another type is printed to effect a greater spacing of the work sheet and additional means for automatically spacing work sheet when a predetermined number of printings of data of one type have been effected.

17 In a machine of the 'classdescribed in types upon a work 4 said combination, a printing mechanism for listing data of separate and distinct types upon a work sheet comprising a series of forms,

type and means-for spacing said work sheet.

prior to a predetermined number of listin data of the other type may printed upon the same form.

18. In a machine ofthe class described in. 

